CN113682263B - Windscreen wiper for special vehicle - Google Patents

Abstract

The invention provides a wiper blade for a special vehicle, which includes a wiper blade and a wiper blade frame. A chute is provided on the bottom surface of the wiper blade frame from outside to inside. The chute extends along the length direction of the wiper blade frame and slides The two ends of the groove run through the wiper blade frame, and a sliding structure that cooperates with the wiper blade is arranged in the chute, so that the plugging of the wiper blade and the wiper blade frame is smoother. The plug-in part is provided with a sliding sheet that cooperates with the sliding structure. The bottom surface of the plug-in part is connected with a thin strip-shaped connection part on the center line. The bottom end of the connection part is connected with a wiper part. The two ends are fitted with end caps respectively. In the present invention, a slide groove is provided in the wiper blade frame, and the wiper blade is adapted through the slide groove. At the same time, a sliding structure is arranged in the slide groove, and the sliding structure is compatible with the sliding of the wiper blade. The blades cooperate to make the assembly of the wiper blade and the wiper blade frame more smooth, and the operation is simple and convenient, and the maintenance cost is reduced.

Description

A wiper blade for a special vehicle

technical field

The invention relates to the technical field of auto parts, in particular to a windshield wiper for special vehicles.

Background technique

The wiper refers to the piece structure installed in front of the windshield. It is composed of a motor, a reducer, a four-bar linkage, a wiper arm spindle, and a wiper blade assembly. For rain, snow and dust, among them, the intermittent flexible wiper is adjusted by the driver according to the rain force and the line of sight. The difference from the wiper installed on other ordinary cars is that it can automatically increase and decrease the wiper speed according to the change of the vehicle speed. Because in the same amount of rainfall, the faster the vehicle speed, the more rainwater will be on the face, and if the car is stopped, the deceleration of the wiper will reduce the noise.

Among them, the wiper blade assembly includes the wiper blade and the wiper blade frame. After a long time of use, the wiper blade of the wiper blade assembly will wear the wiper blade due to friction with the glass. Therefore, in order to ensure that the driver To be able to drive safely, it is necessary to replace the wiper blade assembly in time. When the existing wiper blade assembly is replaced, it is generally disassembled from the wiper arm as a whole, and then replaced with a new wiper blade assembly.

However, when the wiper blade assembly is used, only the wiper blade is worn. If the entire wiper blade assembly is replaced, maintenance costs will be increased and resources will be wasted.

Therefore, it is necessary to provide a special vehicle wiper to solve the above technical problems.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention provides a wiper blade for a special vehicle to solve the problem that the wiper blade assembly of the existing wiper is only worn out when the wiper blade assembly is used, and the maintenance cost is increased by conventional replacement of the entire wiper blade assembly. It also causes a waste of resources.

A wiper blade for a special vehicle provided by the present invention includes a wiper blade and a wiper blade frame, the bottom surface of the wiper blade frame is provided with a chute from the outside to the inside, and the chute extends along the length direction of the wiper blade frame , and both ends of the chute run through the wiper blade frame, and a sliding structure cooperating with the wiper blade is arranged in the chute, so that the plugging of the wiper blade and the wiper blade frame is smoother, and the wiper blade includes The insertion part is fitted with the chute for clearance, and the insertion part is provided with a sliding piece that cooperates with the sliding structure. The bottom end is connected with a wiper part, while the insertion part, the connection part and the wiper part are formed through an integral molding process, and the two ends of the wiper blade frame are fitted with end caps respectively.

Preferably, the cross section of the chute is T-shaped, and presents a strip shape, and the T-shaped design constrains the wiper blade, making it difficult to detach from the wiper blade holder.

Preferably, the sliding structure includes a pair of slots on the inner bottom wall of the T-shaped chute from the outside to the inside, and the slots and the chute also extend along the length direction of the wiper blade frame, and the slots are set There are several rolling balls, the design of the balls reduces the contact area between the wiper blade and the chute, and helps the wiper blade to move.

Preferably, the cross-section of the locking groove is a circular shape with a superior arc, and more than half of the balls are bound by the shape, so that the balls roll in the locking groove.

Preferably, both ends of the wiper blade frame are provided with slots, and the end cover includes a cover body embraced at the end of the wiper blade frame, and an insert block that penetrates into the slot is integrally formed on the cover body.

Preferably, the sliding piece is made of a hard material, and is glued into the groove provided on the bottom surface of the socket, the hard material is not easily deformed, and the contact area between the sliding piece and the ball is ensured.

Compared with related technologies, a wiper blade for a special vehicle provided by the present invention has the following beneficial effects:

In the present invention, a chute is provided in the wiper blade frame, and the wiper blade is adapted through the chute, and a sliding structure is arranged in the chute, and the sliding structure cooperates with the sliding piece of the wiper blade, so that the wiper blade and the wiper blade The assembly of the wiper blade frame is smoother, and the operation is simple and convenient, which reduces the maintenance cost.

The design of the ball reduces the contact area between the wiper blade and the chute, and replaces the original plane friction with rolling friction, which reduces the friction during assembly and is more conducive to replacement.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic cross-sectional view of the wiper blade frame and the middle section of the wiper blade of the present invention;

Fig. 3 is a schematic diagram of an enlarged structure in Fig. 2 of the present invention;

Fig. 4 is a schematic diagram of the end structure of the wiper blade frame of the present invention;

Symbols in the figure: 1, wiper blade, 2, wiper blade frame, 3, chute, 4, sliding structure, 5, socket part, 6, sliding piece, 7, connection part, 8, wiper part, 9 , end cover, 10, card slot, 11, ball, 12, slot, 13, cover body, 14, insert block, 15, groove.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

A wiper blade for a special vehicle. In the specific implementation process, as shown in FIG. 1 , the wiper blade 1 includes an inserting portion 5 that fits and inserts with the chute 3 in a gap. The inserting portion 5 is T-shaped. The sleeve forms a connection relationship. At the same time, a sliding piece 6 that cooperates with the sliding structure 4 is provided on the insertion part 5. A thin strip-shaped connection part 7 is connected to the center line of the bottom surface of the insertion part 5, and a scraper is connected to the bottom end of the connection part 7. The water part 8, while the socket part 5, the connecting part 7 and the wiper part 8 are formed through an integral molding process, which enhances the stability of the mutual connection, and the thin strip-shaped connecting part 7 enables the wiper part 8 to deflect left and right, Comply with the reaction force of the glass received when the wiper blade 1 moves, and reduce the phenomenon of side cracks of the wiper blade 1 .

In the specific implementation process, as shown in Figures 1 and 2, it includes a wiper blade 1 and a wiper blade frame 2. The bottom surface of the wiper blade 1 frame is provided with a chute 3 from the outside to the inside, and the chute 3 runs along the wiper blade. The length direction of the blade holder 2 extends, and the two ends of the chute 3 run through the wiper blade holder 2; It is easy to detach from the wiper blade frame 2, which enhances the connection stability.

In the specific implementation process, as shown in Figure 2 and Figure 3, a sliding structure 4 that cooperates with the wiper blade 1 is provided in the chute 3, so that the insertion of the wiper blade 1 and the wiper blade frame 2 is smoother, More specifically: the sliding structure 4 includes a pair of locking grooves 10 opened from the outside to the inside of the inner bottom wall of the T-shaped sliding groove 3, and the locking grooves 10 and the sliding groove 3 also extend along the length direction of the wiper blade 1 frame, Moreover, the position of the slot 10 corresponds to the position of the sliding piece 6 of the wiper blade 1. There are several rolling balls 11 arranged in the slot 10. The design of the balls 11 reduces the contact area between the wiper blade 1 and the slide slot 6. And the original plane friction is replaced by rolling friction, which reduces the friction during assembly and is more conducive to replacement.

In the specific implementation process, as shown in Figure 3, the cross-section of the slot 10 is a circular shape with a superior arc, and most of the balls 11 are bound by the shape, so that several balls 11 that fill the slot 10 can only move in the slot 10. Scroll inside.

In the specific implementation process, as shown in Figure 1 and Figure 4, the two ends of the wiper blade frame 2 are respectively equipped with end caps 9, and the end caps 9 are made of plastic, which has the advantages of heat resistance and cold resistance. Both ends of the frame 2 are provided with slots 12, and the end cover 9 includes a cover body 13 embraced at the end of the wiper blade frame 2. At the same time, the cover body 13 is integrally formed with an insert 14 that goes deep into the slot 12. When in use, The end caps 9 are sleeved on both ends of the wiper blade frame 2 to block the chute 3 and stabilize the wiper blade 1 .

In the specific implementation process, as shown in Figure 3, the sliding sheet 6 is made of a hard material, and is bonded to the groove 15 provided on the bottom surface of the socket part 5, and protrudes from the bottom surface of the socket part 5, so that The bottom surface of the socket part 5 is not in contact with the surface of the chute 3 during installation, so the contact area is reduced, and the connection is smoother. The sliding sheet 6 of hard material is not easily deformed, and the contact area between the sliding sheet 6 and the ball 11 is maintained.

The working principle of a special vehicle wiper provided by the present invention is as follows: when replacing, pull out the end cover 9 from the wiper blade frame 2, and insert one end of the wiper blade 1 into the chute 3 of the wiper blade frame 2 , and align the insertion part 5 of the wiper blade 1 with the chute 3, at this time, pull the inserted end of the wiper blade 1, and pull it to the other end of the wiper blade hanger 2, so that the wiper blade 1 is gradually inserted into the In the chute 3, finally reinsert the end cover 9 to complete the replacement of the wiper blade 1. During the insertion process, the sliding piece of the wiper blade 1 and the ball 11 produce rolling friction, compared with the original plane friction of the chute 3 , this design reduces the frictional force, and the wiper blade 1 is more smoothly plugged in. The wiper blade 1 of the present invention is simple and convenient to replace, and the maintenance cost is reduced.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention.

The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technologies fields, all of which are equally included in the scope of patent protection of the present invention.

Claims (5)

1. A wiper blade for a special vehicle, comprising a wiper blade (1) and a wiper blade holder (2), characterized in that a slide groove (3) is provided on the bottom surface of the wiper blade holder (2) from outside to inside , the chute (3) extends along the length direction of the wiper blade frame (2), and both ends of the chute (3) run through the wiper blade frame (2). The sliding structure (4) matched with the water blade (1) makes the insertion of the wiper blade (1) and the wiper blade frame (2) smoother, and the wiper blade (1) includes a sliding groove (3) The insertion part (5) with a clearance fit, the insertion part (5) is provided with a sliding piece (6) that cooperates with the sliding structure (4), and the bottom surface of the insertion part (5) is connected on the center line There is a strip-shaped connection part (7), the bottom end of the connection part (7) is connected with the wiper part (8), and the plug part (5), the connection part (7) and the wiper part (8) pass through Formed by an integral molding process, the two ends of the wiper blade frame (2) are respectively fitted with end covers (9); The sliding structure (4) includes a pair of slots (10) opened from outside to inside on the inner bottom wall of the T-shaped chute (3), and the slots (10) and the chute (3) are also along the wiper blade (1) The frame extends in the length direction, and several rolling balls (11) are arranged in the card slot (10). 2 . The wiper blade for special vehicles according to claim 1 , characterized in that, the cross section of the chute ( 3 ) is T-shaped and presents a strip shape. 3 . 3 . The wiper blade for special vehicles according to claim 2 , characterized in that, the cross section of the clamping groove ( 10 ) is a circle with a superior arc. 4 . 4. A special vehicle wiper according to claim 1, characterized in that slots (12) are provided at both ends of the wiper blade frame (2), and the end cover (9) includes a On the cover (13) at the end of the wiper blade frame (2), an insert (14) that goes deep into the slot (12) is integrally formed on the cover (13). 5. The wiper blade for special vehicles according to claim 1, characterized in that, the sliding piece (6) is made of hard material, and is bonded to the groove opened on the bottom surface of the socket part (5) (15) INTERNAL.

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